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  <title>Test for Animation Behavior on CSS Properties</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="text/javascript" src="smilTestUtils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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<pre id="test">
<script class="testbody" type="text/javascript">
<![CDATA[
/* This testcase verifies that animated values of "wider" and "narrower" for
   "font-stretch" have the expected effect, across all possible inherited
   values of the property.
   XXXdholbert Currently, we don't support animating relative values of
   font-stretch, so most of the tests here use todo_is() rather than is().
*/

SimpleTest.waitForExplicitFinish();

const gPropertyName="font-stretch";

// List of non-relative font-stretch values, from smallest to largest
const gFontStretchValues = [
  "ultra-condensed",
  "extra-condensed",
  "condensed",
  "semi-condensed",
  "normal",
  "semi-expanded",
  "expanded",
  "extra-expanded",
  "ultra-expanded"
];

function testFontStretchValue(baseValue, narrowerStep, widerStep)
{
  var svg = SMILUtil.getSVGRoot();
  var gElem = document.createElementNS(SVG_NS, "g");
  gElem.setAttribute("style", "font-stretch: " + baseValue);
  svg.appendChild(gElem);

  var textElem = document.createElementNS(SVG_NS, "text");
  gElem.appendChild(textElem);

  var animElem = document.createElementNS(SVG_NS, "set");
  animElem.setAttribute("attributeName", gPropertyName);
  animElem.setAttribute("attributeType", "CSS");
  animElem.setAttribute("begin", "0s");
  animElem.setAttribute("dur", "indefinite");
  textElem.appendChild(animElem);

  // CHECK EFFECT OF 'narrower'
  // NOTE: Using is() instead of todo_is() for ultra-condensed, since
  // 'narrower' has no effect on that value.
  var myIs = (baseValue == "ultra-condensed" ? is : todo_is);
  animElem.setAttribute("to", "narrower");
  SMILUtil.getSVGRoot().setCurrentTime(1.0); // Force a resample
  myIs(SMILUtil.getComputedStyleSimple(textElem, gPropertyName), narrowerStep,
       "checking effect of 'narrower' on inherited value '" + baseValue + "'");

  // CHECK EFFECT OF 'wider'
  // NOTE: using is() instead of todo_is() for ultra-expanded, since
  // 'wider' has no effect on that value.
  myIs = (baseValue == "ultra-expanded" ? is : todo_is);
  animElem.setAttribute("to", "wider");
  SMILUtil.getSVGRoot().setCurrentTime(1.0); // Force a resample
  myIs(SMILUtil.getComputedStyleSimple(textElem, gPropertyName), widerStep,
          "checking effect of 'wider' on inherited value '" + baseValue + "'");

  // Removing animation should clear animated effects
  textElem.removeChild(animElem);
  svg.removeChild(gElem);
}

function main()
{
  var valuesList = gFontStretchValues;
  for (var baseIdx in valuesList) {
    // 'narrower' and 'wider' are expected to shift us by one slot, but not
    // past the ends of the list of possible values.
    var narrowerIdx = Math.max(baseIdx - 1, 0);
    var widerIdx =    Math.min(baseIdx + 1, valuesList.length - 1);

    testFontStretchValue(valuesList[baseIdx],
                         valuesList[narrowerIdx], valuesList[widerIdx]);
  }

  SimpleTest.finish();
}

window.addEventListener("load", main, false);
]]>
</script>
</pre>
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